<template>
    <div>
<!--      面包屑导航区域-->
      <el-breadcrumb separator="/">
        <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
        <el-breadcrumb-item>用户管理</el-breadcrumb-item>
        <el-breadcrumb-item>用户列表</el-breadcrumb-item>
      </el-breadcrumb>
<!--      卡片视图区域-->
      <el-card class="box-card">
<!--        搜素与添加区域-->
        <el-row :gutter="20">
          <el-col :span="9">
            <el-input
              @clear="getUserList"
              clearable
              placeholder="请输入内容"
              v-model="queryInfo.query">
              <el-button @click="getUserList" slot="append" icon="el-icon-search"></el-button>
            </el-input>
          </el-col>
          <el-col :span="4">
            <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
          </el-col>
        </el-row>
<!--        用户列表区域-->
        <el-table :data="userList" border stripe>
          <el-table-column type="index"></el-table-column>
          <el-table-column prop="username" label="姓名"></el-table-column>
          <el-table-column prop="email" label="邮箱"></el-table-column>
          <el-table-column prop="mobile" label="电话"></el-table-column>
          <el-table-column prop="role_name" label="角色"></el-table-column>
          <el-table-column prop="mg_state" label="状态">
<!--            作用域插槽 slot-scope-->
            <template slot-scope="scope">
<!--              scope.row 表示行的数据-->
<!--              {{scope.row}}-->
              <el-switch v-model="scope.row.mg_state" @change="userStateChange(scope.row)"></el-switch>
            </template>
          </el-table-column>
          <el-table-column label="操作" width="180px">
            <template slot-scope="scope">
<!--              {{scope.row}}-->
<!--              修改按钮-->
              <el-tooltip effect="dark" content="修改按钮" placement="top" :enterable="false">
                <el-button @click="showEditDialog(scope.row.id)" type="primary" icon="el-icon-edit" size="mini"></el-button>
              </el-tooltip>
<!--              删除按钮-->
              <el-tooltip effect="dark" content="删除按钮" placement="top" :enterable="false">
                <el-button @click="removeUserById(scope.row.id)" type="danger" icon="el-icon-delete" size="mini"></el-button>
              </el-tooltip>
<!--              分配角色按钮-->
              <el-tooltip effect="dark" content="分配角色按钮" placement="top" :enterable="false">
                <el-button @click="setRole(scope.row)" type="warning" icon="el-icon-setting" size="mini"></el-button>
              </el-tooltip>
            </template>
          </el-table-column>
        </el-table>
<!--        分页区域-->
        <el-pagination
          @size-change="handleSizeChange"
          @current-change="handleCurrentChange"
          :current-page="queryInfo.pagenum"
          :page-sizes="[1, 2, 5, 10]"
          :page-size="queryInfo.pagesize"
          layout="total, sizes, prev, pager, next, jumper"
          :total="total">
        </el-pagination>
      </el-card>
<!--      添加用户对话框-->
      <el-dialog
        @close="addDialogClosed"
        title="添加用户"
        :visible.sync="addDialogVisible"
        width="50%">
<!--        内容主体区域-->
        <span>
          <el-form
            :model="addForm"
            :rules="addFormRules"
            ref="addFromRef"
            label-width="70px">
            <el-form-item label="用户名" prop="username">
              <el-input v-model="addForm.username"></el-input>
            </el-form-item>
            <el-form-item label="密码" prop="password">
              <el-input v-model="addForm.password"></el-input>
            </el-form-item>
            <el-form-item label="邮箱" prop="email">
              <el-input v-model="addForm.email"></el-input>
            </el-form-item>
            <el-form-item label="手机" prop="mobile">
              <el-input v-model="addForm.mobile"></el-input>
            </el-form-item>
          </el-form>
        </span>
<!--        底部按钮区域-->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>
<!--      修改用户对话框-->
      <el-dialog
        title="修改用户"
        @close="editDialogClosed"
        :visible.sync="editDialogVisible"
        width="50%">
        <el-form :model="editForm"
                 :rules="editFormRules"
                 ref="editFormRef"
                 label-width="70px">
          <el-form-item label="用户名">
            <el-input v-model="editForm.username" disabled></el-input>
          </el-form-item>
          <el-form-item label="手机" prop="mobile">
            <el-input v-model="editForm.mobile"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
            <el-input v-model="editForm.email"></el-input>
          </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>
      <!--      分配角色对话框-->
      <el-dialog
        @close="setRoleDialogClosed"
        title="分配角色"
        :visible.sync="setRoleDialogVisible"
        width="50%">
        <div>
          <p>当前的用户：{{userinfo.username}}</p>
          <p>当前的角色：{{userinfo.role_name}}</p>
          <p>
            分配新角色：
            <el-select v-model="selectedRoleId" placeholder="请选择角色">
              <el-option
                v-for="item in roleList"
                :key="item.id"
                :label="item.roleName"
                :value="item.id">
              </el-option>
            </el-select>
          </p>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRoleDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
      </el-dialog>
    </div>
</template>

<script>
export default {
  name: 'Users',
  data () {
    // 自定义校验规则
    // 验证邮箱的规则
    var checkEmail = (rule, value, cb) => {
      // 验证邮箱的正则表达式
      const regEmial = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
      if (regEmial.test(value)) {
        // 合法邮箱
        return cb()
      }
      // 不合法
      cb(new Error('请输入合法的邮箱'))
    }
    // 验证s手机号的规则
    var checkMobile = (rule, value, cb) => {
      // 验证手机号的正则表达式
      const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
      if (regMobile.test(value)) {
        return cb()
      }
      cb(new Error('请输入合法的手机号'))
    }
    return {
      // 获取用户列表参数对象
      queryInfo: {
        query: '',
        // 当前的页数
        pagenum: 1,
        // 当前没有显示多少条数据
        pagesize: 2
      },
      // 用户数据列表
      userList: [],
      // 总数据条数
      total: 0,
      // 控制添加用户对话框的显示与隐藏
      addDialogVisible: false,
      // 添加用户表单数据
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 添加表单的验证规则对象
      addFormRules: {
        username: [
          { required: true, message: '请输入用户名', trigger: 'blur' },
          { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
        ],
        password: [
          { required: true, message: '请输入密码', trigger: 'blur' },
          { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
        ],
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 控制修改对话框的显示与隐藏
      editDialogVisible: false,
      // 查询到的用户信息对象
      editForm: {},
      // 修改表单验证规则对象
      editFormRules: {
        email: [
          { required: true, message: '请输入邮箱', trigger: 'blur' },
          { validator: checkEmail, trigger: 'blur' }
        ],
        mobile: [
          { required: true, message: '请输入手机', trigger: 'blur' },
          { validator: checkMobile, trigger: 'blur' }
        ]
      },
      // 分配角色对话框显示隐藏
      setRoleDialogVisible: false,
      // 需要被分配角色的用户信息
      userinfo: {},
      // 所有角色的数据列表
      roleList: [],
      // 已选中的角色ID值
      selectedRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    // 获取用户列表数据
    async getUserList () {
      const { data: res } = await this.$http.get('users', { params: this.queryInfo })
      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.$message.success('获取用户列表成功')
      this.userList = res.data.users
      this.total = res.data.total
    },
    // 监听pagesize改变 5/10/15/20
    handleSizeChange (newSize) {
      console.log(newSize)
      this.queryInfo.pagesize = newSize
      this.getUserList()
    },
    // 监听页码值改变事件
    handleCurrentChange (newPage) {
      console.log(newPage)
      this.queryInfo.pagenum = newPage
      this.getUserList()
    },
    // 监听switch开关 状态的改变
    async userStateChange (userinfo) {
      console.log(userinfo)
      console.log(userinfo.mg_state)
      const { data: res } = await this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
      console.log(res)
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('更新用户状态失败')
      }
      this.$message.success('更新用户状态成功')
    },
    // 监听添加用户对话框关闭事件
    addDialogClosed () {
      this.$refs.addFromRef.resetFields()
    },
    // 点击按钮添加新用户
    addUser () {
      this.$refs.addFromRef.validate(async valid => {
        console.log(valid)
        if (!valid) return false
        // 请求服务器
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) {
          this.$message.error('添加用户失败')
        }
        this.$message.success('添加用户成功')
        // 隐藏添加用户的对话框
        this.addDialogVisible = false
        // 重新获取用户的列表数据
        this.getUserList()
      })
    },
    // 修改用户对话框
    async showEditDialog (id) {
      console.log(id)
      const { data: res } = await this.$http.get('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('查询用户信息失败')
      }
      this.$message.success('查询用户信息成功')
      this.editForm = res.data
      // 显示对话框
      this.editDialogVisible = true
    },
    // 监听修改用户对话框关闭事件
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提价
    editUserInfo () {
      this.$refs.editFormRef.validate(async valid => {
        console.log(valid)
        if (!valid) return false
        // 发起修改用户信息的请求
        const { data: res } = await this.$http.put('users/' + this.editForm.id, {
          email: this.editForm.email,
          mobile: this.editForm.mobile
        })
        if (res.meta.status !== 200) {
          return this.$message.error('更新用户信息失败')
        }
        // 关闭对话框
        this.editDialogVisible = false
        // 刷新数据列表
        this.getUserList()
        // 提示修改成功
        this.$message.success('更新用户信息成功')
      })
    },
    // 根据id删除用户信息
    async removeUserById (id) {
      console.log(id)
      // 弹窗询问是否删除用户
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => {
        return err
      })
      // 如果用户确认删除 返回confirm
      // 如果用户取消删除 返回cancel
      console.log(confirmResult)
      if (confirmResult !== 'confirm') {
        // 用户点击取消
        return this.$message.info('已经取消删除')
      }
      // 确认删除
      const { data: res } = await this.$http.delete('users/' + id)
      if (res.meta.status !== 200) {
        return this.$message.error('删除用户失败')
      }
      this.$message.success('删除成功')
      this.getUserList()
    },
    // 分配角色对话框
    async setRole (userinfo) {
      this.userinfo = userinfo
      // 在展示对话框之前 获取所有角色的列表
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) {
        return this.$message.error('获取角色列表失败')
      }
      this.roleList = res.data
      this.$message.success('获取角色列表成功')
      this.setRoleDialogVisible = true
    },
    // 点击按钮 分配角色
    async saveRoleInfo () {
      if (!this.selectedRoleId) {
        return this.$message.error('请选择要分配的角色')
      }
      const { data: res } = await this.$http.put(`users/${this.userinfo.id}/role`, { rid: this.selectedRoleId })
      console.log(res)
      if (res.meta.status !== 200) {
        return this.$message.error('分配角色失败')
      }
      this.$message.success('分配角色成功')
      this.getUserList()
      this.setRoleDialogVisible = false
    },
    // 监听分配角色对话框关闭事件
    setRoleDialogClosed () {
      this.selectedRoleId = ''
      this.userinfo = {}
    }
  }
}
</script>

<style scoped>

</style>
